(19)
(11) EP 0 367 059 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.09.1990 Bulletin 1990/37

(43) Date of publication A2:
09.05.1990 Bulletin 1990/19

(21) Application number: 89119604.0

(22) Date of filing: 23.10.1989
(51) International Patent Classification (IPC)5B41J 2/30, G06K 15/10
(84) Designated Contracting States:
AT BE CH DE ES FR GB IT LI NL SE

(30) Priority: 31.10.1988 US 264587

(71) Applicant: International Business Machines Corporation
Armonk, N.Y. 10504 (US)

(72) Inventors:
  • Anderson, Keith Howard
    Matthews, NC 28105 (US)
  • Leith, Victor Scot
    Charlotte, NC 28212 (US)
  • Malkemes, Charles David
    Charlotte, NC 28226 (US)
  • Myers, Robert Andrew
    Charlotte, NC 28213 (US)
  • Thompson, Thomas Warren
    Charlotte, NC 28211 (US)

(74) Representative: Mönig, Anton, Dipl.-Ing. 
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart
D-70548 Stuttgart (DE)


(56) References cited: : 
   
       


    (54) Wire fire control mechanism for a wire matrix printer


    (57) A wire fire control mechanism is provided for use in a wire matrix printer for controlling the firing of the print wires (44) as the printhead (24) moves across a print receiving medium (40). This wire fire control mechanism enables printing to be accomplished for a wide range of different printhead (24) speeds. It also enables printing to be accomplished while the printhead (24) is accelerating or decelerating.





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